A sex doll is normally delivered with a soft head, where you can pinch the cheeks and parts can be easily pressed for a playful function.
When you choose implanted hair, a hard head is automatically used. This hard skull is necessary to keep the implanted hair securely in place so it does not come loose quickly.
A hard head (which is strictly necessary for implanted hair) provides maximum durability and is hard all over, just like your own skull. However, with a hard head, you can upgrade and choose soft cheeks, giving you a more realistic head with softer parts.
